This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.
Chemical and radiological sample results
MS0490019 , Hays Creek W/A-Lodi
14 of the 56 analytes this system has been tested for have been detected at least once, across 139 samples on record.
The other 42 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.
Across all 139 samples on record, detections range from October 8, 2003 to March 17, 2025. These figures cover the whole record.
What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.
What has been detected, ever
Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 65 of 65 results | Sep 28, 2004 | Sep 12, 2023 |
| Lead 1030 | Inorganic Chemical | 24 of 65 results | Sep 28, 2004 | Jul 29, 2020 |
| Barium 1010 | Inorganic Chemical | 9 of 9 results | Oct 8, 2003 | Mar 17, 2025 |
| Nickel 1036 | Inorganic Chemical | 5 of 9 results | Apr 29, 2013 | Mar 17, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 15, 2011 | Jul 17, 2012 |
| Chromium 1020 | Inorganic Chemical | 4 of 9 results | Apr 4, 2005 | May 6, 2019 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 16, 2019 | Feb 24, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 2 of 7 results | Jun 16, 2010 | Feb 24, 2025 |
| TTHM 2950 | Organic Chemical | 2 of 7 results | Aug 27, 2007 | Jun 16, 2010 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Oct 8, 2003 | Mar 16, 2004 |
| Fluoride 1025 | Inorganic Chemical | 1 of 9 results | Mar 8, 2016 | Mar 8, 2016 |
| Selenium 1045 | Inorganic Chemical | 1 of 9 results | Apr 4, 2005 | Apr 4, 2005 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 22 results | May 24, 2004 | May 24, 2004 |
| Nitrate 1040 | Inorganic Chemical | 1 of 22 results | May 24, 2004 | May 24, 2004 |
No date range is applied: this list draws on every sample on record. Show the last two years only.
The most recent samples, result by result
The table below lists 31–40 of 139 samples, newest first — collected October 16, 2019 to July 28, 2020. The summary above covers all 139.
21 results from the 10 samples listed here: 14 detected, 7 not detected. Across the whole record it is 125 of 531. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.4036 mg/l , sample collected Jul 28, 2020 07:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0007 mg/l , sample collected Jul 28, 2020 07:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.012 mg/l , sample collected Jul 28, 2020, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0037 mg/l , sample collected Jul 28, 2020, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0178 mg/l , sample collected Jul 28, 2020 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0009 mg/l , sample collected Jul 28, 2020 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.6783 mg/l , sample collected Jul 28, 2020 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0049 mg/l , sample collected Jul 28, 2020 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.1289 mg/l , sample collected Jul 28, 2020 08:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0105 mg/l , sample collected Jul 28, 2020 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0327 mg/l , sample collected Jul 28, 2020 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0013 mg/l , sample collected Jul 28, 2020 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0156 mg/l , sample collected Jul 28, 2020 07:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0024 mg/l , sample collected Jul 28, 2020 07:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 10:45, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 10:45, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 10:45, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2020 – Dec 31, 2020 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 20, 2019 13:30, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 20, 2019 13:30, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 20, 2019 13:30, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 16, 2019 10:00, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2017 – Dec 31, 2019 |
-
- Collected
- Jul 28, 2020 07:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200730-072PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4036 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
-
- Collected
- Jul 28, 2020
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200730-071PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.012 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0037 mg/l
-
- Collected
- Jul 28, 2020 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200730-070PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0178 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0009 mg/l
-
- Collected
- Jul 28, 2020 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200730-068PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.6783 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0049 mg/l
-
- Collected
- Jul 28, 2020 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200730-067PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1289 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0105 mg/l
-
- Collected
- Jul 28, 2020 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200730-066PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0327 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0013 mg/l
-
- Collected
- Jul 28, 2020 07:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200730-065PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0156 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0024 mg/l
-
- Collected
- Apr 6, 2020 10:45
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 200407-017NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2020
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Nov 20, 2019 13:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 191121-014NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2019
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Oct 16, 2019 10:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 191018-002CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
Routine (10).